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  1. - 21st December 2010, 04:55 #21
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    cncmachineguy
    cncmachineguy is offline Senior Member
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    I think PBP assumes its in BANK0 unless it does something in a different bank. Since LATF is not in BANK0, PBP will clear the BSR after executing LATF line. When I comment LATF line, sometimes the Interupt occurs during an instruction where BSR !=0, so in the interupt PBP assumes BANK0 for the BANK0 stuff.

    Does this make sense? Setting BSR=0 upon entering the ISR will make sure PBP is not confused

    Thank you Darrel for letting me keep some of my hair so I can pull it out on the next problem.
    Last edited by cncmachineguy; - 21st December 2010 at 05:05. Reason: typo
    -Bert

    The glass is not half full or half empty, Its twice as big as needed for the job!

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